CVE-2023-34966
7.5
HIGH
CVSS 3.1
EPSS 14.3%
Description
An infinite loop vulnerability was found in Samba's mdssvc RPC service for Spotlight. When parsing Spotlight mdssvc RPC packets sent by the client, the core unmarshalling function sl_unpack_loop() did not validate a field in the network packet that contains the count of elements in an array-like structure. By passing 0 as the count value, the attacked function will run in an endless loop consuming 100% CPU. This flaw allows an attacker to issue a malformed RPC request, triggering an infinite loop, resulting in a denial of service condition.
How to fix CVE-2023-34966
To remediate CVE-2023-34966, upgrade the affected package to a fixed version below.
- —upgrade to 2:4.13.13+dfsg-1~deb11u6 or later
Is CVE-2023-34966 being exploited?
Moderate — EPSS is 14.3%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (1)
- from 0, < 2:4.13.13+dfsg-1~deb11u6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |